Asked by Danielle
Sorry about that. So would this be right?
Change 1.00 kg to 1000 grams.
q=(.449)(1000)(1490)= 669010?
Change 1.00 kg to 1000 grams.
q=(.449)(1000)(1490)= 669010?
Answers
Answered by
DrBob222
That looks good to me. You can make two improvements.
a. Since the 1.00 kg has only three significant figures, you are allowed just three; therefore, the answer should be displayed as 6.69 x 10^5. Some profs are picky about s.f.and will count off if too many or too few are given in the answer.
b. You don't have units after the number; again, some profs are VERY picky about that and it makes sense to be picky about it. A number without units doesn't mean anything. So your 669010 could be buckets of wheat or barrels of oil. I recommend you add Joules after writing the number in scientific notation. As in 6.69 x 10^5 Joules.
Good work!
a. Since the 1.00 kg has only three significant figures, you are allowed just three; therefore, the answer should be displayed as 6.69 x 10^5. Some profs are picky about s.f.and will count off if too many or too few are given in the answer.
b. You don't have units after the number; again, some profs are VERY picky about that and it makes sense to be picky about it. A number without units doesn't mean anything. So your 669010 could be buckets of wheat or barrels of oil. I recommend you add Joules after writing the number in scientific notation. As in 6.69 x 10^5 Joules.
Good work!
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